The Lighting Controls Innovation Award was created in 2011 as part of the Illuminating Engineering Society’s Illumination Awards program, which recognizes professionalism, ingenuity and originality in lighting design. LCA is proud to sponsor the Lighting Controls Innovation Award, which recognizes projects that exemplify the effective application of lighting controls in nonresidential spaces.
This month, we will explore the lighting control solution applied to the offices of LMN Architects. Lighting control design by Jill Cody and Shannon Kowski of dark | light design. Photography by Jill Cody and Doug Scott. Controls by Lutron Electronics.
Design challenges for these renovated architectural offices in an iconic 1950’s International style building included: continuous perimeter glazing, low-reflectance finishes, diverse visual requirements, and limited budget. The restrained fixture palette echoes the building’s linear architecture. High-performance fluorescent and LED luminaires ensure proper material rendering and occupant comfort while reducing maintenance, thoughtfully utilizing budget, and beating the 2012 Seattle Energy Code by 30%.
LED sources enhance the character of the exposed concrete walls and ceilings in the entry lobby. Uplight and downlight elements are dimmed separately to allow perfect balancing of both elements. Controls throughout the project are used to both enhance energy performance and provide flexibility for users.
The integrated control system provides for addressable control throughout the office’s many lighting zones – circulation, lobbies, meeting rooms, and open offices.
LEDs are used extensively, with fluorescent sources used where appropriate for economy and energy savings – including wallwashing for display walls.
In open offices, one linear LED luminaire per workbench delivers appropriate task lighting levels while diffusing source brightness. Each workbench is individually zoned, allowing benching groups to control their own environment.
Collaborative areas use the same concept, with greater density to increase light levels for model building. The integrated control system automatically raises shades to maximize daylight while reducing direct glare through the use of multiple exterior light sensors, zoned to read shadowing from adjacent buildings. The system also provides daylight responsive dimming, and generates energy data. The project operates below its 0.6 w/sf connected load with ongoing refinements to further reduce energy use.
The “commons” multipurpose space uses geometric dimmable LED pendants.
Dimmed during the day to reveal expansive city views, the lobby at night creates drama through the application of light. The lighting controls for this office enhance both energy performance and spatial experience for staff and visitors alike.